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251 papers · 2 filters
Multi-wavelength and black hole mass properties of Low Luminosity Active Nuclei
F. Panessa, L. Bassani, M. Cappi +6
We investigate the relation between the X-ray nuclear emission, optical emission line, radio luminosity and black hole mass for a sample of nearby Seyfert galaxies. Strong linear c…
Metallicity Evolution of Active Galactic Nuclei
Tohru Nagao, Roberto Maiolino, Alessandro Marconi
In this contribution we report our recent investigation of the gas metallicity in active galactic nuclei and its dependence on luminosity and redshift. We compile large spectroscop…
A highly-collimated SiO jet in the HH212 protostellar outflow
C. Codella, S. Cabrit, F. Gueth +4
We mapped the HH212 Class 0 outflow in SiO(2--1, 5--4) and continuum using the PdBI in its extended configurations. The unprecedented angular resolution (down to 0.34") allows accu…
Comparing different approaches to model the rotational modulation of the Sun as a star
A. F. Lanza, A. S. Bonomo, M. Rodono'
The space missions MOST, COROT and Kepler are going to provide us with high-precision optical photometry of solar-like stars with time series extending from tens of days to several…
Kinematic Structure in the Galactic Halo at the North Galactic Pole: RR Lyrae and BHB Stars show different kinematics
T. D. Kinman, C. Cacciari, A. Bragaglia +2
Space motions are given for 38 RR Lyrae (RRL) stars and 79 blue horizontal branch (BHB) stars in a ~200 deg2 area around the North Galactic Pole (NGP) using a homogeneous distance…
Photometric Redshifts of Galaxies in COSMOS
B. Mobasher, P. Capak, N. Z. Scoville +26
We measure photometric redshifts and spectral types for galaxies in the COSMOS survey. We use template fitting technique combined with luminosity function priors and with the optio…